Intermittent fasting (IF) has its advantages and disadvantages, and is not right for everyone. But for some, it can help lower the risk of heart concerns, cancer risk and more.

IF, refers to repeatedly going without solid food for longer periods than is typical on a daily breakfast-lunch-dinner schedule. Variations are endless.

Fasting periods accelerate the clearing out of waste left by dead and damaged cells, a process known as autophagy.

A failure of autophagy to keep up with accumulated cellular debris is believed by many scientists to be one of the major causes of the chronic diseases associated with aging.
Positive effects of IF suggested by animal and human studies include:
1. Decreased cardiovascular disease risk.
2. Decreased cancer risk.
3. Lower diabetes risk (at least in animals, data on humans were less clear).
4. Improved cognitive function.
5. Protection against some effects of Alzheimer's and Parkinson's disease

However IF Is not recommended for teens, nor pregnant or lactating women. Some health conditions - such as severe gastrointestinal reflux disease, or GERD

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